EP3493979B1 - Method and apparatus for producing a padding product, and padding product - Google Patents

Method and apparatus for producing a padding product, and padding product Download PDF

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Publication number
EP3493979B1
EP3493979B1 EP17732411.8A EP17732411A EP3493979B1 EP 3493979 B1 EP3493979 B1 EP 3493979B1 EP 17732411 A EP17732411 A EP 17732411A EP 3493979 B1 EP3493979 B1 EP 3493979B1
Authority
EP
European Patent Office
Prior art keywords
paper strip
crumpling
edge regions
drive rollers
middle region
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17732411.8A
Other languages
German (de)
French (fr)
Other versions
EP3493979A1 (en
Inventor
Jean-Marc Slovencik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Storopack Hans Reichenecker GmbH
Original Assignee
Storopack Hans Reichenecker GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Storopack Hans Reichenecker GmbH filed Critical Storopack Hans Reichenecker GmbH
Publication of EP3493979A1 publication Critical patent/EP3493979A1/en
Application granted granted Critical
Publication of EP3493979B1 publication Critical patent/EP3493979B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
    • B31D5/0043—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material
    • B31D5/0052—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material involving rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0047—Feeding, guiding or shaping the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0064—Stabilizing the shape of the final product, e.g. by mechanical interlocking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0076—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads involving particular machinery details
    • B31D2205/0082—General layout of the machinery or relative arrangement of its subunits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0076—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads involving particular machinery details
    • B31D2205/0088—Control means

Definitions

  • the invention relates to a method and a device for producing an upholstery product.
  • the invention also relates to an upholstery product as such.
  • the upholstery product is made from a flat, elongated and, in particular, two-ply or multi-ply paper strip.
  • a generic method, a generic device and a generic upholstery product is from the DE 10 2012 222 805 B3 known.
  • the present invention is based, inter alia, on the object of a particular DE 10 2012 222 805 B3 known method of further developing a device disclosed there and an upholstery product disclosed there.
  • the method according to the invention is consequently characterized in that, prior to crumpling, the two-layer or multi-layer, adjacent and already opened edge areas are turned over towards the middle area.
  • the paper strip can preferably be crumpled in the middle area in such a way that the folded edge areas are also crumpled up.
  • the fact that the edge areas are also turned over and preferably also crumpled up results in an upholstery product with a comparatively high density, whereby the upholstery product is also well suited for upholstering heavier objects.
  • Such an upholstery product then advantageously does not have any freely radially outwardly protruding edge areas, since these are turned over before being crumpled.
  • an elongated paper strip is consequently provided.
  • the paper strip has a central area extending in the longitudinal direction as well as two-layer or multi-layer adjacent edge areas that are not connected to one another.
  • the paper strip has two or more layers and that the individual layers are connected to one another in the central area, for example in a form-fitting or material fit.
  • gluing the individual layers in the central area has proven to be preferred.
  • the adhesive connection can preferably run along a line that extends in the longitudinal direction.
  • the adhesive connection can only be in sections, for example at points.
  • the adhesive connection can also be provided along a closed line.
  • the paper strip does not have to be formed from layers lying on top of one another; Other configurations are also conceivable, such as, for example, two already folded paper strips which are connected to one another along their two folded edges and this connected area forming the central area according to the invention.
  • the connection can be form-fitting or cohesive.
  • the folded edges can be connected before opening and turning over.
  • the flat folded paper strips are first opened and their edge areas are turned over.
  • the opened and folded paper strips are then connected to one another along their folded edges, with the folded edges connected to one another then forming the central area, along which it is then crumpled.
  • the method steps in claim 1 therefore do not specify any mandatory chronological order;
  • the only decisive factor is that before crumpling along the middle area, the edge areas are turned over to the middle area or to the folded edges in the case of folded and not yet connected paper strips.
  • edge areas In the initial state of the paper strip, which can be pressed flat and, in particular, flat, adjacent edge areas preferably rest against one another.
  • edge regions In the case of a two-ply paper strip, the middle region of which is connected, there are then preferably four edge regions, two edge regions then in each case resting against one another in the flat state.
  • three or more layers can also be provided. Then three or more edge regions are provided adjacent to each other in the flat state.
  • a paper strip, which in particular has two layers, is comparatively easy to provide.
  • the individual layers are only connected to one another in the middle area when the paper strip is provided, or that the individual layers in the middle area are connected to one another before the paper strip is provided, i.e. in a preceding operation that can also take place at a different location will.
  • the adjacent, in particular adjacent Edge areas turned into a paper strip with a star-like cross section.
  • the paper strip is preferably moved over one or more impact cores.
  • a star-like paper strip is then created with a total of four "rays" protruding in the radial direction, these still being connected in the middle, central area. If three layers are provided, a "star” with six “rays” is created; if more layers are provided, a "star” with correspondingly more "rays”.
  • the respective adjacent beams preferably enclose an angle in the range from 60 ° to 120 ° and preferably in the range from 70 ° to 100 ° and more preferably in the range from 85 ° to 95 °.
  • the edge areas are turned over to the middle area.
  • the edge areas can be turned upwards, downwards or in such a way that one edge area is turned around the respectively adjacent other edge area.
  • the paper strip is crumpled at least along the central area, preferably together with the edge areas.
  • the crumpling takes place in the longitudinal direction at least along the middle area in such a way that advantageously sections of the middle area are moved or pushed together with the edge areas towards one another, so that the length of the The paper strip in the crumpled state, i.e. the upholstery product, is shorter than the paper strip in the non-crumpled state.
  • This also results in greater resilience in the longitudinal direction of the crumpled paper strip compared to the non-crumpled paper strip.
  • An upholstery product in which the edge areas are turned over, whereby these are not also crumpled up likewise has favorable properties.
  • the envelope module can include envelope means such as envelope surfaces, envelope edges or envelope wires. Opening can also take place in the handling module before or at the same time as handling.
  • the envelope means can then be designed identically to the impact means.
  • the envelope module is advantageously followed by a crumpling module in which the folded paper strip is crumpled.
  • the crumpling module and / or the envelope module are advantageously an independent assembly educated.
  • This has the advantage that, although identical crumple modules but different envelope modules can be used for different paper strips, in particular for paper strips of different widths.
  • a manufacturer of the upholstery products stores different cover modules for paper strips of different widths, and that an associated cover module is used depending on the paper strip to be used.
  • the cover modules are designed in such a way that the folded paper strips each have the same width, so that this folded paper strip can be fed to the crumple module.
  • One and the same crumple module can consequently be combined with different crumple modules and thus be used for different starting paper strips.
  • the crumpling is advantageously carried out by means of a first set of drive rollers and a second set of drive rollers, the second set of drive rollers rotating at an angular speed which is less than the angular speed of the first set of drive rollers.
  • the angular speed of at least one of the sets of drive rollers for setting the crumple density is adjustable.
  • different speeds can be used to produce upholstery products that are crumpled to different degrees and thus with different densities.
  • the first set of drive rollers turns comparatively quickly and the second set of drive rollers comparatively slowly, then there is a comparatively strong build-up and compression of the upholstery product during crumpling. This results in a very dense upholstery product. If less dense upholstery products are to be produced, the angular speed, in particular of the second set of drive rollers, can be increased.
  • Such a method can be used both with paper strips, the edge areas of which are not turned over towards the middle area, and with paper strips, in which the edge areas are turned over and preferably also crumpled up.
  • the upholstery product is separated into two areas by braking or stopping the first set of drive rollers while the second set of drive rollers continues to be driven.
  • the two areas are advantageously separated from one another by tearing them apart.
  • the paper strip has intended separation points running transversely to the longitudinal direction, in particular in the form of perforations.
  • severing can take place by cutting, in particular by means of a cutting device.
  • the addressed object is also achieved by an apparatus for producing an upholstery product, in particular for carrying out the method according to the invention, according to the Features of claim 5 solved.
  • the device is distinguished in particular by the fact that a turning mechanism is provided for turning over the edge areas towards the central area and that the crumpling mechanism is preferably set up in such a way that the edge areas that are turned over are also crumpled up.
  • a turning mechanism is provided for turning over the edge areas towards the central area and that the crumpling mechanism is preferably set up in such a way that the edge areas that are turned over are also crumpled up.
  • an envelope module in which the envelope mechanism is arranged, and a crumple module, in which the crumple mechanism is arranged, are provided, the envelope module being exchangeable for another envelope module when using paper strips of different widths.
  • This has the advantage that for different paper strips, in particular for paper strips of different widths, identical crumple modules can be used but different envelope modules.
  • the crumpling mechanism is formed by a second set of drive rollers interacting with the first set of drive rollers in such a way that the second set of drive rollers can be rotated at an angular speed that is lower than that Angular speed at which the first set of drive rollers is rotatable, a control unit for Adjustment of the angular speed of at least one of the sets of drive rollers is provided so that the crumple density can be adjusted with the control unit.
  • an upholstery product which is produced in particular using a method according to the invention and / or which is produced in particular using a device according to the invention.
  • Such an upholstery product in the completely manufactured state has an elongated paper strip with a longitudinally extending central region and with two or more layered edge regions that are not connected to one another, the adjacent edge regions being turned up like a star and turned over towards the central region.
  • the paper strip is crumpled along the middle area and preferably also along the folded edge areas.
  • a flat, elongated paper strip which has a central region extending in the longitudinal direction and two or more layers of adjacent edge regions that are not connected to one another, can be used as the starting material for such an upholstery product.
  • two or more folded paper strips can be used as the starting material, which have an inner area, which has the respective folded edge, and an outer area with the two-layer or multi-layer edge areas.
  • the outer area or its multilayered area can then first be used Edge areas that are opened - so that a strip of paper with a star-shaped cross section is created - and then turned over. Only after opening and turning over can the inner areas, which have the folded edges, be connected to one another by two paper strips to form the middle area, which is then crumpled in a next step.
  • the paper strip 10 shown has two layers 12 and 14.
  • the two layers 12, 14 lie on top of one another and have identical outer contours. They have an elongated format, their central longitudinal axis being identified by the reference number 16.
  • the paper strip 10 can be an "endless" long paper strip which can be unrolled from a roll or removed from a stack, for example.
  • the two layers 12, 14 are in their middle area 18, which in the in Figures 1 and 2 illustrated paper strip runs along the central longitudinal axis 16, connected to one another.
  • the two layers 12, 14 are preferably materially bonded along the central longitudinal axis 16, in particular by gluing or interlocking, in particular by embossing.
  • the two layers 12, 14 also have edge regions 20, 21 and 22, 23 that are not connected to one another.
  • the layer 12 thus has the two edge regions 20, 21.
  • the layer 14 has the two edge regions 22, 23.
  • the edge area 20 of the layer 12 is arranged adjacent to the edge area 22 of the layer 14.
  • the edge area 21 of the layer 12 is also arranged adjacent to the edge area 23 of the layer 14.
  • the flat state shown in the flat state of the paper strip 10 the edge regions 20 and 22 and the edge regions 21 and 23 can touch one another. These edge areas 20, 21, 22, 23 are then opened, as described further below.
  • the paper strip 10 has intended separation regions 24 running transversely to the longitudinal axis 16, which are designed as perforations provided in the layers 20 and 22. In this way, the paper strip 10 can be separated into two areas along a predetermined separation point 24 by tearing it in the longitudinal direction.
  • FIG. 3 a further paper strip 10 is shown, which is suitable for use in a method according to the invention or for producing an upholstery product according to the invention.
  • This paper strip 10 consists of two webs 100, 102, which are each folded along a fold line 104.
  • the fold lines 104 are facing each other.
  • the two webs 100, 102 are connected to one another in the area of the fold lines 104, for example by gluing or embossing, so that the middle area 18 is formed there.
  • a device 110 according to the invention for producing an upholstery product 126, 128, 130 is shown schematically.
  • the device 110 essentially comprises 3 modules.
  • An input 112 is initially followed by an impact module 114.
  • the flat paper strip 10 is first opened, for example via impact cores 58 as they are from FIG DE 10 2012 222 805 B3 are known.
  • the paper strip 10 is opened in a star-like manner to form a paper strip 10 '.
  • Such a paper strip 10 ' is in Figure 5 shown in cross section.
  • the angles ⁇ between the adjacent edge regions 20, 22 and 21, 23 are approximately 90 °. It is of course conceivable that the angles ⁇ are significantly smaller and lie in the range from 45 ° to 70 °, or even less.
  • the opened paper strip 10 ' is fed to an envelope module 116 in which the edge regions 20, 22 and 21, 23 at in Figure 5 envelope areas 118 shown are turned over.
  • the opened paper strip 10 ' is consequently in the envelope module 116 in the in Figure 6
  • the opened and folded paper strips 10 ′′ shown in cross section are deformed.
  • a turning in the turning areas 118 is shown at an acute angle; In practice, turning over takes place regularly over rounded edges, so that the areas 118 do not have to taper to a point, but can also be rounded.
  • the paper strip 10 ′′ will then be made from Figure 4 becomes clear, a crumple module 120 is fed.
  • the paper strip 10 ′′ is crumpled in the middle area 18, the folded edge areas 21, 23 and 20, 22 also being crumpled up.
  • the crumpling module 120 comprises a first set of drive rollers 74, 76 and a set of drive rollers 82, 84 downstream of these drive rollers 74, 76.
  • the first set of drive rollers is preferably driven by a first electric motor.
  • the roller 74 can be acted upon against the roller 76, for example, with a slight bias, so that the roller 76, which is driven by the electric motor, is also driven.
  • the middle region 18 of the paper strip 10 is located between the rollers 74 and 76.
  • the lower roller 84 of the second set of drive rollers 82, 84 can also be driven by an electric motor.
  • the upper roller 82 is separated from the lower roller 84 under pretension, so that it rotates with the roller 84 when it rotates.
  • the rollers 74, 76 and 82, 84 have a width b.
  • the angular speed of the rollers 82, 84 of the second drive set can be selected so that it is slightly is less than the angular velocity of the drive rollers 74, 76 of the first set.
  • This causes the paper strip 10 ′′ to crumple in the central region 18 in a crumple zone, the crumple zone lying between the two sets of rolls 74, 76 and 82, 84.
  • the paper strip 10 ′′ consequently leaves the device 110 in the machine exit 124 as a cushioning product 126, as shown in FIGS Figures 7 and 8 is shown, which is opened like a star, turned over and crumpled in the middle area.
  • the width b of the central area crumpled by the rollers which is shown in Figures 7 and 8 is recognizable, can be reduced to a very small extent or to a line.
  • a control unit 122 is provided to control the electric motors and thus the rollers 74, 76 and 82, 84 in Figure 4 .
  • the angular speed of the first set of drive rollers 74, 76 and the angular speed of the second set of drive rollers 82, 84 can preferably be set independently of one another via the control unit 122. The greater the difference in angular velocities, the more the crumple will be. Consequently, the crumpling density of the upholstery product 126 to be produced can be set via the control unit 122.
  • the impact module 114 and the envelope module 116 can also be implemented in a common module.
  • the opening and turning over can take place immediately one after the other or, alternatively, largely at the same time.
  • the envelope module 116 is preferably arranged exchangeably in the device 110. This has the advantage that different envelope modules can be used for different paper strips. In particular when paper strips 10 with different widths are to be processed. The folding is then carried out in such a way that the folded paper strip 10 ′′ always has the same external dimensions and can therefore always be processed by the same crumpling module 120.
  • rollers 74, 76 and 82, 84 can be used.
  • a separate feed mechanism for conveying the paper strip 10 is provided by device 110; for example in the form of further conveyor rollers.
  • such a cushioning product 126 can be produced in a simple manner, and it also has favorable cushioning properties.
  • a paper strip 10 is shown in the figures, which has only two layers, it is conceivable that a paper strip is also used which has three or more layers.
  • the three or more layers are then connected to one another in the central region 18, or preferably in the region of the central longitudinal axis 16.
  • a total of four or more impact cores are then advantageously used, which engage in the spaces between the respective adjacent edge regions of the respective layers.
  • the edge areas are then turned over accordingly for the respective number of edge areas.
  • edge areas 21 and 22 were first folded over and then the edge areas 20 and 23 were folded around the edge areas 21, 22 before the crumpling in the middle area 18 took place.
  • edge areas 21 and 22 were first folded over and then the edge areas 20 and 23 were folded around the edge areas 21, 22 before the crumpling in the middle area 18 took place.

Landscapes

  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Buffer Packaging (AREA)
  • Making Paper Articles (AREA)
  • Laminated Bodies (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Description

Die Erfindung betrifft ein Verfahren sowie eine Vorrichtung zum Herstellen eines Polsterungserzeugnisses. Die Erfindung betrifft außerdem ein Polsterungserzeugnis als solches. Das Polsterungserzeugnis wird dabei hergestellt aus einem flachen, länglichen und insbesondere zwei- oder mehrlagigen Papierstreifen.The invention relates to a method and a device for producing an upholstery product. The invention also relates to an upholstery product as such. The upholstery product is made from a flat, elongated and, in particular, two-ply or multi-ply paper strip.

Aus der EP 1 539 474 B1 ist ein Polsterungserzeugnis bekannt, das aus einem zweilagigen Papierschlauch geknüllt ist. Aus dem benannten Dokument ist zudem eine Vorrichtung sowie ein Verfahren bekannt, mit denen aus dem länglichen Papierschlauch das dort offenbarte Polsterungserzeugnis geknüllt wird.From the EP 1 539 474 B1 an upholstery product is known which is crumpled from a two-ply paper tube. There is also a device from the named document and a method is known with which the upholstery product disclosed there is crumpled from the elongated paper tube.

Ein gattungsgemäßes Verfahren, eine gattungsgemäße Vorrichtung sowie ein gattungsgemäßes Polsterungserzeugnis ist aus der DE 10 2012 222 805 B3 bekannt.A generic method, a generic device and a generic upholstery product is from the DE 10 2012 222 805 B3 known.

Aus der US 8,34 8,818 B2 sowie der DE 694 00 576 T2 sind Polsterprodukte sowie Verfahren zu deren Herstellung bekannt, welche jeweils aus einem einlagigen Papierstreifen hergestellt sind.From the US 8.34 8,818 B2 as well as the DE 694 00 576 T2 upholstery products and processes for their production are known, each of which is made from a single-layer paper strip.

Der vorliegenden Erfindung liegt unter anderem die Aufgabe zu Grunde, ein insbesondere aus DE 10 2012 222 805 B3 bekanntes Verfahren, eine dort offenbarte Vorrichtung und ein dort offenbartes Polsterungserzeugnis weiter zu entwickeln.The present invention is based, inter alia, on the object of a particular DE 10 2012 222 805 B3 known method of further developing a device disclosed there and an upholstery product disclosed there.

Aus der US 2008 002 0 184 sind ein Polsterungserzeugnis sowie das Verfahren zu deren Herstellung bekannt, welche Streifen übereinander anordnen und fixieren.From the US 2008 002 0 184 an upholstery product and the method for its production are known which arrange and fix strips on top of one another.

In der US 5,938,580 ist eine Anlage offenbart, welche die Ränder von Papierstreifen zur Mitte umschlägt.In the U.S. 5,938,580 a system is disclosed which folds the edges of paper strips to the center.

Aus der US 2009 008 2 187 ist eine Anlage und Verfahren zur Herstellung von Polsterungserzeugnis bekannt, welche mehrlagige Papierstreifen durch unterschiedliche Winkelgeschwindigkeiten der Rollenantriebe herstellt. Diese Aufgabe wird durch ein Verfahren mit den Merkmalen des Patentanspruchs 1 gelöst.From the US 2009 008 2 187 a system and method for the production of upholstery product is known which produces multi-layer paper strips by means of different angular speeds of the roller drives. This object is achieved by a method with the features of claim 1.

Das erfindungsgemäße Verfahren ist folglich dadurch gekennzeichnet, dass vor dem Knüllen die zwei- oder mehrlagigen, benachbarten und bereist aufgeschlagenen Randbereiche hin zum mittleren Bereich umgeschlagen werden. Der Papierstreifen kann dabei vorzugsweise im mittleren Bereich derart geknüllt sein, dass auch die umgeschlagenen Randbereiche mitgeknüllt werden. Dadurch, dass auch die Randbereiche umgeschlagen und vorzugsweise mitgeknüllt werden, ergibt sich ein Polsterungserzeugnis mit einer vergleichsweise hohen Dichte, wodurch das Polsterungserzeugnis auch zur Polsterung von schwereren Gegenständen gut geeignet ist. Ein solches Polsterungserzeugnis weist dann vorteilhafterweise keine frei nach radial außen abstehenden Randbereiche auf, da diese vor dem Knüllen umgeschlagen werden.The method according to the invention is consequently characterized in that, prior to crumpling, the two-layer or multi-layer, adjacent and already opened edge areas are turned over towards the middle area. The paper strip can preferably be crumpled in the middle area in such a way that the folded edge areas are also crumpled up. The fact that the edge areas are also turned over and preferably also crumpled up results in an upholstery product with a comparatively high density, whereby the upholstery product is also well suited for upholstering heavier objects. Such an upholstery product then advantageously does not have any freely radially outwardly protruding edge areas, since these are turned over before being crumpled.

Gemäß dem erfindungsgemäßen Verfahren wird folglich ein länglicher Papierstreifen bereitgestellt. Der Papierstreifen weist einen sich in Längsrichtung erstreckenden mittleren Bereich auf sowie nicht miteinander verbundene, zwei- oder mehrlagige, benachbarte Randbereiche.According to the method according to the invention, an elongated paper strip is consequently provided. The paper strip has a central area extending in the longitudinal direction as well as two-layer or multi-layer adjacent edge areas that are not connected to one another.

Denkbar ist, dass der Papierstreifen zwei oder mehrlagig ausgebildet ist und dass die einzelnen Lagen im mittleren Bereich miteinander verbunden sind, beispielsweise form- oder stoffschlüssig. Insbesondere hat sich ein Verkleben der einzelnen Lagen im mittleren Bereich als bevorzugt herausgestellt. Die Klebeverbindung kann dabei vorzugsweise entlang einer Linie, die sich in Längsrichtung erstreckt, verlaufen. Die Klebeverbindung kann dabei nur abschnittsweise, beispielsweise punktweise, sein. Die Klebeverbindung kann allerdings auch entlang einer geschlossenen Linie bereitgestellt werden. Anstelle oder zusätzlich zum Kleben ist auch ein Verprägen der einzelnen Lagen miteinander denkbar.It is conceivable that the paper strip has two or more layers and that the individual layers are connected to one another in the central area, for example in a form-fitting or material fit. In particular, gluing the individual layers in the central area has proven to be preferred. The adhesive connection can preferably run along a line that extends in the longitudinal direction. The adhesive connection can only be in sections, for example at points. However, the adhesive connection can also be provided along a closed line. Instead of or in addition to gluing, it is also possible to emboss the individual layers with one another.

Der Papierstreifen muss dabei aber nicht aus aufeinander liegenden Lagen gebildet sein; denkbar sind auch andere Ausgestaltungen, wie beispielsweise zwei bereits gefaltete Papierstreifen, die entlang ihrer beiden Falzkanten miteinander verbunden sind und wobei dieser verbundene Bereich den mittleren Bereich gemäß der Erfindung bildet. Auch hier kann die Verbindung form- oder stoffschlüssig sein. Ein Verbinden der Falzkanten kann dabei vor dem Aufschlagen und dem Umschlagen erfolgen. Allerdings ist auch denkbar, dass die flach gefaltete Papierstreifen zunächst aufgeschlagen und deren Randbereiche umgeschlagen werden. In einem nächsten Schritt werden dann die aufgeschlagenen und umgeschlagenen Papierstreifen entlang ihren Falzkanten miteinander verbunden, wobei dann die miteinander verbundenen Falzkanten den mittleren Bereich bilden, entlang dem dann geknüllt wird.The paper strip does not have to be formed from layers lying on top of one another; Other configurations are also conceivable, such as, for example, two already folded paper strips which are connected to one another along their two folded edges and this connected area forming the central area according to the invention. Here, too, the connection can be form-fitting or cohesive. The folded edges can be connected before opening and turning over. However, it is also conceivable that the flat folded paper strips are first opened and their edge areas are turned over. In a next step, the opened and folded paper strips are then connected to one another along their folded edges, with the folded edges connected to one another then forming the central area, along which it is then crumpled.

Die Verfahrensschritte in Patentanspruch 1 geben daher keine zwingende zeitliche Reihenfolge vor; entscheidend ist lediglich, dass vor dem Knüllen entlang des mittleren Bereichs die Randbereiche hin zum mittleren Bereich, bzw. zu den Falzkanten bei gefalteten und noch nicht miteinander verbundenen Papierstreifen, umgeschlagen werden.The method steps in claim 1 therefore do not specify any mandatory chronological order; The only decisive factor is that before crumpling along the middle area, the edge areas are turned over to the middle area or to the folded edges in the case of folded and not yet connected paper strips.

Im Ausgangszustand des Papierstreifens, der flach und insbesondere flach gedrückt sein kann, liegen benachbarte Randbereiche vorzugsweise aneinander an. Bei einem zweilagigen Papierstreifen, dessen mittlerer Bereich verbunden ist, sind dann vorzugsweise vier Randbereiche vorhanden, wobei dann jeweils zwei Randbereiche im flachen Zustand aneinander anliegen. Allerdings können auch drei oder mehr Lagen vorgesehen sein. Dann sind drei oder mehr Randbereiche im flachen Zustand zueinander benachbart vorgesehen. Ein Papierstreifen, der insbesondere zwei Lagen aufweist, ist vergleichsweise einfach bereitzustellen.In the initial state of the paper strip, which can be pressed flat and, in particular, flat, adjacent edge areas preferably rest against one another. In the case of a two-ply paper strip, the middle region of which is connected, there are then preferably four edge regions, two edge regions then in each case resting against one another in the flat state. However, three or more layers can also be provided. Then three or more edge regions are provided adjacent to each other in the flat state. A paper strip, which in particular has two layers, is comparatively easy to provide.

Dabei ist denkbar, dass erst bei Bereitstellung des Papierstreifens die einzelnen Lagen miteinander im mittleren Bereich verbunden werden oder dass bereits vor Bereitstellung des Papierstreifens, also in einem davorliegenden Arbeitsgang, der auch an einem anderen Ort erfolgen kann, die einzelnen Lagen im mittleren Bereich miteinander verbunden werden.It is conceivable that the individual layers are only connected to one another in the middle area when the paper strip is provided, or that the individual layers in the middle area are connected to one another before the paper strip is provided, i.e. in a preceding operation that can also take place at a different location will.

Gemäß dem weiteren Verfahrensschritt der Erfindung werden die benachbarten, insbesondere aneinander anliegenden Randbereiche zu einem im Querschnitt sternartigen Papierstreifen aufgeschlagen. Dazu wird der Papierstreifen vorzugsweise über einen oder über mehrere Aufschlagkerne bewegt. Bei einem zweilagigen Papierstreifen entsteht dann ein sternartiger Papierstreifen mit insgesamt vier in radialer Richtung abstehenden "Strahlen", wobei diese im mittleren, zentralen Bereich nach wie vor verbunden sind. Beim Vorsehen von drei Lagen, entsteht dann insbesondere ein "Stern" mit sechs "Strahlen"; bei Vorsehen von mehr Lagen, ein "Stern" mit entsprechend mehr "Strahlen".According to the further method step of the invention, the adjacent, in particular adjacent Edge areas turned into a paper strip with a star-like cross section. For this purpose, the paper strip is preferably moved over one or more impact cores. In the case of a two-ply paper strip, a star-like paper strip is then created with a total of four "rays" protruding in the radial direction, these still being connected in the middle, central area. If three layers are provided, a "star" with six "rays" is created; if more layers are provided, a "star" with correspondingly more "rays".

Die jeweils benachbarten Strahlen schließen dabei vorzugsweise einen Winkel im Bereich von 60° bis 120° und vorzugsweise im Bereich von 70° bis 100° und weiter vorzugsweise im Bereich von 85° bis 95° ein.The respective adjacent beams preferably enclose an angle in the range from 60 ° to 120 ° and preferably in the range from 70 ° to 100 ° and more preferably in the range from 85 ° to 95 °.

Zeitgleich mit dem Aufschlagen, oder auch zeitlich danach, werden die Randbereiche hin zum mittleren Bereich umgeschlagen. Das Umschlagen der Randbereiche kann dabei jeweils nach oben, jeweils nach unten oder auch so erfolgen, dass ein Randbereich um den jeweils benachbarten, anderen Randbereich herumgeschlagen wird.At the same time as the impact, or also afterwards, the edge areas are turned over to the middle area. The edge areas can be turned upwards, downwards or in such a way that one edge area is turned around the respectively adjacent other edge area.

Dann wird der Papierstreifen wenigstens entlang des mittleren Bereichs vorzugsweise zusammen mit den Randbereichen geknüllt. Das Knüllen erfolgt dabei in Längsrichtung wenigstens entlang des mittleren Bereichs derart, dass vorteilhafterweise Abschnitte des mittleren Bereichs zusammen mit den Randbereichen aufeinander zu bewegt oder geschoben werden, so dass die Länge des Papierstreifens im geknüllten Zustand, also des Polsterungserzeugnisses, kürzer ist als der Papierstreifen im ungeknüllten Zustand. Dadurch ergibt sich auch eine größere Rückstellelastizität in Längsrichtung des geknüllten Papierstreifens im Vergleich zum nicht geknüllten Papierstreifen. Gemäß der Erfindung ist es nicht zwingend erforderlich, dass auch die umgeschlagenen Randbereiche mitgeknüllt werden. Ein Polsterungserzeugnis, bei dem die Randbereiche umgeschlagen sind, wobei diese nicht mitgeknüllt werden, weist ebenfalls günstige Eigenschaften auf. Allerdings hat sich als vorteilhaft erwiesen, die Randbereiche derart umzuschlagen und das Knüllen derart vorzusehen, dass die umgeschlagenen Randbereiche mitgeknüllt werden. Hierdurch ergibt sich ein vergleichsweise stabiles und kompakt geknülltes Polsterungserzeugnis.Then the paper strip is crumpled at least along the central area, preferably together with the edge areas. The crumpling takes place in the longitudinal direction at least along the middle area in such a way that advantageously sections of the middle area are moved or pushed together with the edge areas towards one another, so that the length of the The paper strip in the crumpled state, i.e. the upholstery product, is shorter than the paper strip in the non-crumpled state. This also results in greater resilience in the longitudinal direction of the crumpled paper strip compared to the non-crumpled paper strip. According to the invention, it is not absolutely necessary that the folded edge areas are also crumpled up. An upholstery product in which the edge areas are turned over, whereby these are not also crumpled up, likewise has favorable properties. However, it has proven advantageous to fold over the edge areas in such a way and to provide the crumpling in such a way that the turned over edge areas are also crumpled up. This results in a comparatively stable and compactly crumpled upholstery product.

Dabei ist vorteilhaft, wenn das Umschlagen der Randbereiche hin zum mittleren Bereich in einem Umschlagmodul durchgeführt wird. Das Umschlagmodul kann dabei Umschlagmittel, wie beispielsweise Umschlagflächen, Umschlagkanten oder Umschlagdrähte umfassen. Im Umschlagmodul kann vor oder zeitgleich mit dem Umschlagen auch das Aufschlagen erfolgen. Die Umschlagmittel können dann identisch mit den Aufschlagmitteln ausgebildet sein.It is advantageous if the edge areas are turned over to the central area in a turn-over module. The envelope module can include envelope means such as envelope surfaces, envelope edges or envelope wires. Opening can also take place in the handling module before or at the same time as handling. The envelope means can then be designed identically to the impact means.

Dem Umschlagmodul ist vorteilhafterweise ein Knüllmodul nachgelagert, in dem der umgeschlagene Papierstreifen geknüllt wird. Das Knüllmodul und/oder das Umschlagmodul sind dabei vorteilhafterweise als eigenständige Baugruppe ausgebildet. Dies hat den Vorteil, dass für unterschiedliche Papierstreifen, insbesondere für unterschiedlich breite Papierstreifen, zwar identische Knüllmodule aber unterschiedliche Umschlagmodule zum Einsatz kommen können. Beispielsweise ist denkbar, dass ein Hersteller der Polsterungserzeugnisse unterschiedliche Umschlagmodule für unterschiedlich breite Papierstreifen bevorratet, und dass je nach zu verwendendem Papierstreifen ein zugehöriges Umschlagmodul zum Einsatz kommt. Die Umschlagmodule sind dabei so ausgebildet, dass der umgeschlagene Papierstreifen jeweils eine gleiche Breite aufweist, so dass dieser umgeschlagene Papierstreifen dem Knüllmodul zugeführt werden kann. Ein und dasselbe Knüllmodul kann folglich mit unterschiedlichen Knüllmodulen kombiniert und damit für unterschiedliche Ausgangs-Papierstreifen Verwendung finden.The envelope module is advantageously followed by a crumpling module in which the folded paper strip is crumpled. The crumpling module and / or the envelope module are advantageously an independent assembly educated. This has the advantage that, although identical crumple modules but different envelope modules can be used for different paper strips, in particular for paper strips of different widths. For example, it is conceivable that a manufacturer of the upholstery products stores different cover modules for paper strips of different widths, and that an associated cover module is used depending on the paper strip to be used. The cover modules are designed in such a way that the folded paper strips each have the same width, so that this folded paper strip can be fed to the crumple module. One and the same crumple module can consequently be combined with different crumple modules and thus be used for different starting paper strips.

Das Knüllen als solches erfolgt vorteilhafterweise mittels eines ersten Satzes Antriebsrollen und eines zweiten Satzes Antriebsrollen, wobei sich der zweite Satz Antriebsrollen mit einer Winkelgeschwindigkeit dreht, die geringer ist als die Winkelgeschwindigkeit des ersten Satzes Antriebsrollen.As such, the crumpling is advantageously carried out by means of a first set of drive rollers and a second set of drive rollers, the second set of drive rollers rotating at an angular speed which is less than the angular speed of the first set of drive rollers.

Dabei ist vorteilhaft, wenn die Winkelgeschwindigkeit wenigstens eines der Sätze der Antriebsrollen zur Einstellung der Knülldichte verstellbar ist. Durch unterschiedliche Geschwindigkeiten können folglich unterschiedlich stark geknüllte und damit unterschiedlich dichte Polsterungserzeugnisse erzeugt werden. Dreht sich der erste Satz Antriebsrollen vergleichsweise schnell und der zweite Satz Antriebsrollen vergleichsweise langsam, dann erfolgt ein vergleichsweise starkes Aufstauen und Komprimieren des Polsterungsprodukts beim Knüllen. Dadurch ergibt sich ein sehr dichtes Polsterungsprodukt. Sollen weniger dichte Polsterungsprodukte hergestellt werden, so kann die Winkelgeschwindigkeit insbesondere des zweiten Satzes der Antriebsrollen erhöht werden. Ein solches Verfahren kann Anwendung finden sowohl bei Papierstreifen, deren Randbereiche nicht hin zum mittleren Bereich umgeschlagen sind, als auch bei Papierstreifen, bei denen die Randbereiche umgeschlagen und vorzugsweise mitgeknüllt sind.It is advantageous if the angular speed of at least one of the sets of drive rollers for setting the crumple density is adjustable. As a result, different speeds can be used to produce upholstery products that are crumpled to different degrees and thus with different densities. The first set of drive rollers turns comparatively quickly and the second set of drive rollers comparatively slowly, then there is a comparatively strong build-up and compression of the upholstery product during crumpling. This results in a very dense upholstery product. If less dense upholstery products are to be produced, the angular speed, in particular of the second set of drive rollers, can be increased. Such a method can be used both with paper strips, the edge areas of which are not turned over towards the middle area, and with paper strips, in which the edge areas are turned over and preferably also crumpled up.

Zur jeweiligen Einstellung einer vorgesehenen Länge des Polsterungserzeugnisses ist vorteilhaft, wenn ein Abtrennen des Polsterungserzeugnisses in zwei Bereiche durch Abbremsen oder Anhalten des ersten Satzes Antriebsrollen erfolgt, während der zweite Satz Antriebsrollen weiter angetrieben wird. Vorteilhafterweise werden die beiden Bereiche durch Auseinanderreißen voneinander getrennt. In diesem Zusammenhang ist es vorteilhaft, wenn der Papierstreifen quer zur Längsrichtung verlaufende Solltrennstellen, insbesondere in Form von Perforierungen, aufweist. Selbstverständlich ist auch denkbar, dass ein Abtrennen durch Schneiden, insbesondere mittels einer Schneideinrichtung, erfolgen kann.For the respective setting of an intended length of the upholstery product, it is advantageous if the upholstery product is separated into two areas by braking or stopping the first set of drive rollers while the second set of drive rollers continues to be driven. The two areas are advantageously separated from one another by tearing them apart. In this context, it is advantageous if the paper strip has intended separation points running transversely to the longitudinal direction, in particular in the form of perforations. Of course, it is also conceivable that severing can take place by cutting, in particular by means of a cutting device.

Die angesprochene Aufgabe wird auch durch eine Vorrichtung zur Herstellung eines Polsterungserzeugnisses, insbesondere zur Durchführung des erfindungsgemäßen Verfahrens, nach den Merkmalen des Anspruchs 5 gelöst. Die Vorrichtung zeichnet sich insbesondere dadurch aus, dass ein Umschlagmechanismus zum Umschlagen der Randbereiche hin zum mittleren Bereich vorgesehen ist und dass der Knüllmechanismus vorzugsweise derart eingerichtet ist, dass auch die umgeschlagenen Randbereiche mitgeknüllt werden. Mit einer solchen Vorrichtung kann also ein Polsterungserzeugnis hergestellt werden, welches im Vergleich zu dem Polsterungserzeugnis, das in der DE 10 2012 222 805 B3 offenbart es, eine größere Dichte aufweist und damit zur Polsterung von schwereren Gegenständen geeignet ist.The addressed object is also achieved by an apparatus for producing an upholstery product, in particular for carrying out the method according to the invention, according to the Features of claim 5 solved. The device is distinguished in particular by the fact that a turning mechanism is provided for turning over the edge areas towards the central area and that the crumpling mechanism is preferably set up in such a way that the edge areas that are turned over are also crumpled up. With such a device, an upholstery product can be produced, which compared to the upholstery product in the DE 10 2012 222 805 B3 discloses it, has a greater density and is therefore suitable for upholstering heavier objects.

Dabei ist vorteilhaft, wenn ein Umschlagmodul, in dem der Umschlagmechanismus angeordnet ist, und ein Knüllmodul, in dem der Knüllmechanismus angeordnet ist, vorgesehen sind, wobei das Umschlagmodul bei Verwendung von unterschiedlich breiten Papierstreifen durch ein anderes Umschlagmodul austauschbar ist. Dies hat den Vorteil, dass für unterschiedliche Papierstreifen, insbesondere für unterschiedlich breite Papierstreifen, zwar identische Knüllmodule aber dennoch unterschiedliche Umschlagmodule zum Einsatz kommen können.It is advantageous if an envelope module, in which the envelope mechanism is arranged, and a crumple module, in which the crumple mechanism is arranged, are provided, the envelope module being exchangeable for another envelope module when using paper strips of different widths. This has the advantage that for different paper strips, in particular for paper strips of different widths, identical crumple modules can be used but different envelope modules.

Dabei ist vorteilhaft, wenn der Knüllmechanismus von einem mit dem ersten Satz Antriebsrollen zusammenwirkenden zweiten Satz Antriebsrollen derart gebildet wird, dass der zweite Satz Antriebsrollen mit einer Winkelgeschwindigkeit drehbar ist, die geringer ist als die
Winkelgeschwindigkeit, mit der der erste Satz Antriebsrollen drehbar ist, wobei eine Steuereinheit zur Verstellung der Winkelgeschwindigkeit wenigstens eines der Sätze der Antriebsrollen vorgesehen ist, so dass mit der Steuereinheit die Knülldichte verstellt werden kann.It is advantageous if the crumpling mechanism is formed by a second set of drive rollers interacting with the first set of drive rollers in such a way that the second set of drive rollers can be rotated at an angular speed that is lower than that
Angular speed at which the first set of drive rollers is rotatable, a control unit for Adjustment of the angular speed of at least one of the sets of drive rollers is provided so that the crumple density can be adjusted with the control unit.

Die eingangs genannte Aufgabe wird auch gelöst durch ein Polsterungserzeugnis, das insbesondere nach einem erfindungsgemäßen Verfahren hergestellt ist und/oder das insbesondere mit einer erfindungsgemäßen Vorrichtung hergestellt ist. Ein derartiges Polsterungserzeugnis weist im fertig hergestellten Zustand einen länglichen Papierstreifen mit einem sich in Längsrichtung erstreckenden mittleren Bereich und mit nicht miteinander verbundenen, zwei- oder mehrlagigen Randbereichen auf, wobei die benachbarten Randbereiche sternartig aufgeschlagen und hin zum mittleren Bereich umgeschlagen sind. Dabei ist der Papierstreifen entlang des mittleren Bereichs und vorzugsweise auch entlang der umgeschlagenen Randbereiche geknüllt. Als Ausgangsmaterial für ein solches Polsterungserzeugnis kann insbesondere ein flacher, länglicher Papierstreifen, der einen sich in Längsrichtung erstreckenden mittleren Bereich und zwei- oder mehrlagige, nicht miteinander verbundene benachbarte Randbereiche aufweist Verwendung finden. Allerdings ist auch denkbar, dass als Ausgangsmaterial beispielsweise zwei oder mehrere gefaltete Papierstreifen Verwendung finden können, die einen inneren Bereich, der die jeweilige Falzkante aufweist, sowie einen äußeren Bereich mit den zwei- oder mehrlagigen Randbereichen. Zur Herstellung des erfindungsgemäßen Polsterungserzeugnisses können dann zunächst der äußere Bereich, bzw. dessen mehrlagigen Randbereiche, aufgeschlagen werden - so dass ein im Querschnitt sternartiger Papierstreifen entsteht - und dann umgeschlagen werden. Erst nach dem Aufschlagen und Umschlagen können dann die inneren Bereiche, die die Falzkanten aufweisen, von zwei Papierstreifen miteinander zum mittleren Bereich verbunden werden, der dann in einem nächsten Schritt geknüllt wird.The object mentioned at the beginning is also achieved by an upholstery product which is produced in particular using a method according to the invention and / or which is produced in particular using a device according to the invention. Such an upholstery product in the completely manufactured state has an elongated paper strip with a longitudinally extending central region and with two or more layered edge regions that are not connected to one another, the adjacent edge regions being turned up like a star and turned over towards the central region. The paper strip is crumpled along the middle area and preferably also along the folded edge areas. A flat, elongated paper strip, which has a central region extending in the longitudinal direction and two or more layers of adjacent edge regions that are not connected to one another, can be used as the starting material for such an upholstery product. However, it is also conceivable that two or more folded paper strips, for example, can be used as the starting material, which have an inner area, which has the respective folded edge, and an outer area with the two-layer or multi-layer edge areas. To produce the upholstery product according to the invention, the outer area or its multilayered area can then first be used Edge areas that are opened - so that a strip of paper with a star-shaped cross section is created - and then turned over. Only after opening and turning over can the inner areas, which have the folded edges, be connected to one another by two paper strips to form the middle area, which is then crumpled in a next step.

Weitere Vorteile und vorteilhafte Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung zu entnehmen, anhand derer ein Ausführungsbeispiel der Erfindung näher beschrieben und erläutert ist.Further advantages and advantageous configurations of the invention can be found in the following description, on the basis of which an exemplary embodiment of the invention is described and explained in more detail.

Es zeigen:

Figur 1
einen flachen Papierstreifen zur Herstellung eines erfindungsgemäßen Polsterungserzeugnisses in perspektivischer Ansicht;
Figur 2
den Papierstreifen nach Figur 1 in Draufsicht;
Figur 3
einen anderen Papierstreifen in einer der Figur 1 entsprechenden Ansicht;
Figur 4
eine schematische Darstellung einer erfindungsgemäßen Vorrichtung zum Herstellen eines Polsterungserzeugnisses;
Figur 5
den Papierstreifen gemäß Figur 1 nach dem Aufschlagen;
Figur 6
den Papierstreifen gemäß Figur 5 nach dem Umschlagen;
Figur 7
ein erfindungsgemäßes Polsterungserzeugnis in Schrägansicht;
Figur 8
das Polsterungserzeugnis nach Figur 7 im Querschnitt;
Figur 9
ein weiteres erfindungsgemäßes Polsterungserzeugnis in Schrägansicht; und
Figur 10
noch ein weiteres erfindungsgemäßes Polsterungserzeugnis in Schrägansicht.
Show it:
Figure 1
a flat paper strip for producing an upholstery product according to the invention in a perspective view;
Figure 2
the paper strips Figure 1 in plan view;
Figure 3
another strip of paper in one of the Figure 1 appropriate view;
Figure 4
a schematic representation of a device according to the invention for producing an upholstery product;
Figure 5
the paper strip according to Figure 1 after serving;
Figure 6
the paper strip according to Figure 5 after turning over;
Figure 7
an upholstery product according to the invention in an oblique view;
Figure 8
the upholstery product Figure 7 in cross section;
Figure 9
another upholstery product according to the invention in an oblique view; and
Figure 10
yet another upholstery product according to the invention in an oblique view.

Der in den Figuren 1 und 2 gezeigte Papierstreifen 10 weist zwei Lagen 12 und 14 auf. Die beiden Lagen 12, 14 liegen aufeinander und haben identische Außenkonturen. Sie haben ein längliches Format, wobei deren Mittellängsachse mit dem Bezugszeichen 16 gekennzeichnet ist. Bei dem Papierstreifen 10 kann es sich um einen "endlos"-langen Papierstreifen handeln, der beispielsweise von einer Rolle abrollbar ist oder von einem Stapel abnehmbar ist.The one in the Figures 1 and 2 The paper strip 10 shown has two layers 12 and 14. The two layers 12, 14 lie on top of one another and have identical outer contours. They have an elongated format, their central longitudinal axis being identified by the reference number 16. The paper strip 10 can be an "endless" long paper strip which can be unrolled from a roll or removed from a stack, for example.

Die beiden Lagen 12, 14 sind in ihrem mittleren Bereich 18, der bei dem in Figuren 1 und 2 dargestellten Papierstreifen entlang der Mittellängsachse 16 verläuft, miteinander verbunden. Vorzugsweise sind die beiden Lagen 12, 14 entlang der Mittellängsachse 16 stoffschlüssig, insbesondere durch Kleben oder formschlüssig, insbesondere durch Prägen, miteinander verbunden.The two layers 12, 14 are in their middle area 18, which in the in Figures 1 and 2 illustrated paper strip runs along the central longitudinal axis 16, connected to one another. The two layers 12, 14 are preferably materially bonded along the central longitudinal axis 16, in particular by gluing or interlocking, in particular by embossing.

Die beiden Lagen 12, 14 weisen zudem nicht miteinander verbundene Randbereiche 20, 21 und 22, 23 auf. Die Lage 12 weist also die beiden Randbereiche 20, 21 auf. Die Lage 14 weist die beiden Randbereiche 22, 23 auf. Der Randbereich 20 der Lage 12 ist dabei benachbart zum Randbereich 22 der Lage 14 angeordnet. Ebenso ist der Randbereich 21 der Lage 12 benachbart zum Randbereich 23 der Lage 14 angeordnet. In dem in Figur 1 und 2 gezeigten flachen Zustand des Papierstreifens 10 können sich die Randbereiche 20 und 22 sowie die Randbereiche 21 und 23 gegenseitig berühren. Diese Randbereiche 20, 21, 22, 23 werden dann, wie weiter unten beschrieben, aufgeschlagen.The two layers 12, 14 also have edge regions 20, 21 and 22, 23 that are not connected to one another. The layer 12 thus has the two edge regions 20, 21. The layer 14 has the two edge regions 22, 23. The edge area 20 of the layer 12 is arranged adjacent to the edge area 22 of the layer 14. The edge area 21 of the layer 12 is also arranged adjacent to the edge area 23 of the layer 14. In the in Figures 1 and 2 The flat state shown in the flat state of the paper strip 10, the edge regions 20 and 22 and the edge regions 21 and 23 can touch one another. These edge areas 20, 21, 22, 23 are then opened, as described further below.

Wie insbesondere aus Figur 2 deutlich wird, weist der Papierstreifen 10 quer zur Längsachse 16 verlaufende Solltrennbereiche 24 auf, die als in den Lagen 20 und 22 vorgesehene Perforierungen ausgebildet sind. Hierdurch kann der Papierstreifen 10 in zwei Bereiche, entlang einer Solltrennstelle 24, durch Abreißen in Längsrichtung getrennt werden.Like in particular from Figure 2 It becomes clear that the paper strip 10 has intended separation regions 24 running transversely to the longitudinal axis 16, which are designed as perforations provided in the layers 20 and 22. In this way, the paper strip 10 can be separated into two areas along a predetermined separation point 24 by tearing it in the longitudinal direction.

In der Figur 3 ist ein weiterer Papierstreifen 10 gezeigt, der zur Verwendung in einem erfindungsgemäßen Verfahren oder zur Herstellung eines erfindungsgemäßen Polsterungserzeugnisses geeignet ist. Dieser Papierstreifen 10 besteht aus zwei Bahnen 100, 102, die jeweils entlang einer Falzlinie 104 gefaltet sind. Die Falzlinien 104 sind dabei einander zugewandt. Die beiden Bahnen 100, 102 sind im Bereich der Falzlinien 104 miteinander verbunden, beispielsweise durch Verkleben oder Prägen, sodass dort der mittlere Bereich 18 gebildet wird.In the Figure 3 a further paper strip 10 is shown, which is suitable for use in a method according to the invention or for producing an upholstery product according to the invention. This paper strip 10 consists of two webs 100, 102, which are each folded along a fold line 104. The fold lines 104 are facing each other. The two webs 100, 102 are connected to one another in the area of the fold lines 104, for example by gluing or embossing, so that the middle area 18 is formed there.

In der Figur 4 ist eine erfindungsgemäße Vorrichtung 110 zur Erzeugung eines Polsterungserzeugnisses 126, 128, 130 schematisch dargestellt. Die Vorrichtung 110 umfasst im Wesentlichen dabei 3 Module. Einem Eingang 112 ist zunächst ein Aufschlagmodul 114 nachgeordnet. Im Aufschlagmodul 114 wird der flache Papierstreifen 10 zunächst aufgeschlagen, beispielsweise über Aufschlagkerne 58 wie sie aus der DE 10 2012 222 805 B3 bekannt sind. Nach dem Aufschlagen, bzw. nach dem Verlassen des Aufschlagmoduls 114 ist der Papierstreifen 10 sternartig zu einem Papierstreifen 10' aufgeschlagen. Ein solcher Papierstreifen 10' ist in Figur 5 im Querschnitt gezeigt. In der Figur 5 sind die Winkel α zwischen den benachbarten Randbereichen 20,22 und 21,23 ca. 90°. Selbstverständlich ist denkbar, dass die Winkel α deutlich kleiner sind und im Bereich von 45° bis 70°, oder noch darunter, liegen.In the Figure 4 a device 110 according to the invention for producing an upholstery product 126, 128, 130 is shown schematically. The device 110 essentially comprises 3 modules. An input 112 is initially followed by an impact module 114. In the impact module 114, the flat paper strip 10 is first opened, for example via impact cores 58 as they are from FIG DE 10 2012 222 805 B3 are known. After opening or after leaving the opening module 114, the paper strip 10 is opened in a star-like manner to form a paper strip 10 '. Such a paper strip 10 'is in Figure 5 shown in cross section. In the Figure 5 the angles α between the adjacent edge regions 20, 22 and 21, 23 are approximately 90 °. It is of course conceivable that the angles α are significantly smaller and lie in the range from 45 ° to 70 °, or even less.

Der aufgeschlagene Papierstreifen 10' wird einem Umschlagmodul 116 zugeführt, in dem die Randbereiche 20,22 und 21,23 an in Figur 5 gezeigten Umschlagbereichen 118 umgeschlagen werden. Der aufgeschlagene Papierstreifen 10' wird folglich im Umschlagmodul 116 in den in Figur 6 im Querschnitt gezeigten aufgeschlagenen und umgeschlagenen Papierstreifen 10'' verformt. In Figur 6 ist ein Umschlagen in den Umschlagbereichen 118 zwar spitzwinklig dargestellt; ein Umschlagen in der Praxis erfolgt regelmäßig über gerundete Kanten, so dass die Bereiche 118 keineswegs spitz zulaufen müssen, sondern auch gerundet sein können.The opened paper strip 10 'is fed to an envelope module 116 in which the edge regions 20, 22 and 21, 23 at in Figure 5 envelope areas 118 shown are turned over. The opened paper strip 10 'is consequently in the envelope module 116 in the in Figure 6 The opened and folded paper strips 10 ″ shown in cross section are deformed. In Figure 6 a turning in the turning areas 118 is shown at an acute angle; In practice, turning over takes place regularly over rounded edges, so that the areas 118 do not have to taper to a point, but can also be rounded.

Der Papierstreifen 10'' wird dann, wie aus Figur 4 deutlich wird, einen Knüllmodul 120 zugeführt. Im Knüllmodul 120 wird der Papierstreifen 10'' im mittleren Bereich 18 geknüllt, wobei auch die umgeschlagenen Randbereiche 21,23 und 20,22 mitgeknüllt werden.The paper strip 10 ″ will then be made from Figure 4 becomes clear, a crumple module 120 is fed. In the crumpling module 120, the paper strip 10 ″ is crumpled in the middle area 18, the folded edge areas 21, 23 and 20, 22 also being crumpled up.

Das Knüllmodul 120 umfasst dabei einen ersten Satz Antriebsrollen 74,76 und einen diesen Antriebsrollen 74,76 nachgelagerten Satz Antriebsrollen 82,84. Der erste Satz Antriebsrollen wird dabei vorzugsweise von einem ersten Elektromotor angetrieben. Die Rolle 74 kann dabei beispielsweise unter geringer Vorspannung gegen die Rolle 76 beaufschlagt sein, so dass diese von der Rolle 76, die vom Elektromotor angetrieben wird, mit angetrieben wird. Wie erwähnt, befindet sich zwischen den Rollen 74 und 76 der mittlere Bereich 18 des Papierstreifens 10. Entsprechend dem ersten Satz Antriebsrolle 74, 76 kann beim zweiten Satz Antriebsrollen 82, 84 ebenfalls die untere Rolle 84 über einen Elektromotor angetrieben sein. Die obere Rolle 82 ist unter Vorspannung gegen die untere Rolle 84 getrennt, so dass diese bei Drehen der Rolle 84 mit dreht. Die Rollen 74, 76 und 82, 84 weisen dabei eine Breite b auf.The crumpling module 120 comprises a first set of drive rollers 74, 76 and a set of drive rollers 82, 84 downstream of these drive rollers 74, 76. The first set of drive rollers is preferably driven by a first electric motor. The roller 74 can be acted upon against the roller 76, for example, with a slight bias, so that the roller 76, which is driven by the electric motor, is also driven. As mentioned, the middle region 18 of the paper strip 10 is located between the rollers 74 and 76. Corresponding to the first set of drive rollers 74, 76, the lower roller 84 of the second set of drive rollers 82, 84 can also be driven by an electric motor. The upper roller 82 is separated from the lower roller 84 under pretension, so that it rotates with the roller 84 when it rotates. The rollers 74, 76 and 82, 84 have a width b.

Die Winkelgeschwindigkeit der Rollen 82, 84 des zweiten Antriebssatzes ist dabei so wählbar, dass sie geringfügig geringer ist als die Winkelgeschwindigkeit der Antriebsrollen 74, 76 des ersten Satzes. Dadurch wird ein Knüllen des Papierstreifens 10'' im mittleren Bereich 18 in einer Knüllzone bewirkt, wobei die Knüllzone zwischen den beiden Sätzen von Rollen 74, 76 und 82, 84 liegt. Der Papierstreifen 10'' verlässt folglich die Vorrichtung 110 im Maschinenausgang 124 als Polsterungserzeugnis 126, wie es in den Figuren 7 und 8 gezeigt ist, das sternartig aufgeschlagen, umgeschlagen und im mittleren Bereich geknüllt ist. Die Breite b des von den Rollen geknüllten mittleren Bereichs, der in Figuren 7 und 8 erkennbar ist, kann auf ein sehr geringes Maß beziehungsweise auf eine Linie reduziert sein.The angular speed of the rollers 82, 84 of the second drive set can be selected so that it is slightly is less than the angular velocity of the drive rollers 74, 76 of the first set. This causes the paper strip 10 ″ to crumple in the central region 18 in a crumple zone, the crumple zone lying between the two sets of rolls 74, 76 and 82, 84. The paper strip 10 ″ consequently leaves the device 110 in the machine exit 124 as a cushioning product 126, as shown in FIGS Figures 7 and 8 is shown, which is opened like a star, turned over and crumpled in the middle area. The width b of the central area crumpled by the rollers, which is shown in Figures 7 and 8 is recognizable, can be reduced to a very small extent or to a line.

Zur Ansteuerung der Elektromotoren und damit der Rollen 74, 76 und 82, 84 in Figur 4 ist eine Steuereinheit 122 vorgesehen. Über die Steuereinheit 122 kann die Winkelgeschwindigkeit des ersten Satzes der Antriebsrollen 74, 76 sowie die Winkelgeschwindigkeit des zweiten Satzes der Antriebsrollen 82, 84 vorzugsweise unabhängig voneinander eingestellt werden. Je größer der Unterschied der Winkelgeschwindigkeiten, desto stärker wird geknüllt. Folglich kann über die Steuereinheit 122 die Knülldichte des zu erzeugenden Polsterungserzeugnisses 126 eingestellt werden.To control the electric motors and thus the rollers 74, 76 and 82, 84 in Figure 4 a control unit 122 is provided. The angular speed of the first set of drive rollers 74, 76 and the angular speed of the second set of drive rollers 82, 84 can preferably be set independently of one another via the control unit 122. The greater the difference in angular velocities, the more the crumple will be. Consequently, the crumpling density of the upholstery product 126 to be produced can be set via the control unit 122.

Einzelheiten die Art und Funktion der Antriebsrollen betreffend wird auf die DE 10 2012 222 805 B3 verwiesen, die allerdings keinen Umschlagmechanismus bzw. kein Umschlagmodul aufweist.Details of the type and function of the drive rollers are referred to DE 10 2012 222 805 B3 referenced, which however does not have an envelope mechanism or an envelope module.

Zum Trennen des endlos langen Papierstreifens 10 in unterschiedliche Bereiche ist vorteilhaft, wenn der erste Satz Antriebsrollen 74, 76 abgebremst wird, wobei der zweite Satz Antriebsrollen 82, 84 weiter angetrieben wird, so dass ein Abreißen entlang eines in Figur 1 und 2 dargestellten Solltrennbereichs 24 erfolgt. Ein derart abgetrenntes Polsterungserzeugnis 126 verlässt dann die Vorrichtung 110 durch einen Ausgang 124.In order to separate the endlessly long paper strip 10 into different areas, it is advantageous if the first set of drive rollers 74, 76 is braked, the second set of drive rollers 82, 84 being driven further so that tearing along an in Figures 1 and 2 Setpoint separation area 24 shown takes place. A cushioning product 126 separated in this way then leaves the device 110 through an outlet 124.

Das Aufschlagmodul 114 und das Umschlagmodul 116 können erfindungsgemäß auch in einem gemeinsamen Modul realisiert werden. Das Aufschlagen und Umschlagen kann dabei unmittelbar nacheinander oder alternativ dazu weitgehend zeitgleich erfolgen.According to the invention, the impact module 114 and the envelope module 116 can also be implemented in a common module. The opening and turning over can take place immediately one after the other or, alternatively, largely at the same time.

Das Umschlagmodul 116 ist dabei vorzugsweise austauschbar in der Vorrichtung 110 angeordnet. Dies hat den Vorteil, dass bei unterschiedlichen Papierstreifen unterschiedliche Umschlagmodule Verwendung finden können. Insbesondere dann, wenn Papierstreifen 10 mit unterschiedlicher Breite verarbeitet werden sollen. Das Umschlagen erfolgt dann derart, dass der umgeschlagene Papierstreifen 10'' stets gleiche Außenmaße aufweist, und dadurch stets vom gleichen Knüllmodul 120 verarbeitet werden kann.The envelope module 116 is preferably arranged exchangeably in the device 110. This has the advantage that different envelope modules can be used for different paper strips. In particular when paper strips 10 with different widths are to be processed. The folding is then carried out in such a way that the folded paper strip 10 ″ always has the same external dimensions and can therefore always be processed by the same crumpling module 120.

Zum Bewegen und Fördern des Papierstreifens 10 in der Vorrichtung 50 können zum einen die Rollen 74,76 und 82,84 Verwendung finden. Andererseits ist auch denkbar, dass ein eigener Vorschubmechanismus zum Fördern des Papierstreifens 10 durch die Vorrichtung 110 vorgesehen ist; beispielsweise in Form von weiteren Förderrollen.For moving and conveying the paper strip 10 in the device 50, the rollers 74, 76 and 82, 84 can be used. On the other hand, it is also conceivable that a separate feed mechanism for conveying the paper strip 10 is provided by device 110; for example in the form of further conveyor rollers.

Wie beschrieben kann ein derartiges Polsterungserzeugnis 126 auf einfache Art und Weise hergestellt werden, wobei es zudem günstige Polsterungseigenschaften aufweist.As described, such a cushioning product 126 can be produced in a simple manner, and it also has favorable cushioning properties.

In den Figuren 8 und 9 ist ein mit der Vorrichtung 110 hergestellter geknüllter Papierstreifen 10''', also das fertige Polsterungserzeugnis 126, gezeigt. Deutlich zu erkennen ist der geknüllte mittlere Bereich 18 mit der Knüllbreite b und mit den mitgeknüllten Randbereichen 21,23 und 20,22, die nicht sternenartig abstehen, sondern hin zum mittleren Bereich 18 umgeschlagen sind.In the Figures 8 and 9 a crumpled paper strip 10 '''produced with the device 110, that is to say the finished upholstery product 126, is shown. The crumpled central area 18 with the crumpled width b and with the crumpled edge areas 21, 23 and 20, 22, which do not protrude star-like, but are turned over towards the central area 18, can be clearly seen.

Obwohl in den Figuren ein Papierstreifen 10 dargestellt ist, der lediglich zwei Lagen aufweist, ist denkbar, dass auch ein Papierstreifen Verwendung findet, der drei oder mehr Lagen aufweist. Die drei oder mehr Lagen sind dann im mittleren Bereich 18, beziehungsweise vorzugsweise im Bereich der Mittellängsachse 16, miteinander verbunden. Anstelle von zwei einander gegenüberliegenden Aufschlagkernen 58 finden dann vorteilhafterweise insgesamt vier oder mehr Aufschlagkerne Verwendung, die in die Zwischenräume zwischen den jeweils benachbarten Randbereichen der jeweiligen Lagen eingreifen. Das Umschlagen der Randbereiche erfolgt dann entsprechend für die jeweilige Anzahl der Randbereiche.Although a paper strip 10 is shown in the figures, which has only two layers, it is conceivable that a paper strip is also used which has three or more layers. The three or more layers are then connected to one another in the central region 18, or preferably in the region of the central longitudinal axis 16. Instead of two opposing impact cores 58, a total of four or more impact cores are then advantageously used, which engage in the spaces between the respective adjacent edge regions of the respective layers. The edge areas are then turned over accordingly for the respective number of edge areas.

In den Figuren 9 und 10 sind zwei weitere Polsterungserzeugnisse 128, 130 gezeigt. Beim Polsterungserzeugnis 128 gemäß Figur 9 wurde der Randbereich 23 nach unten umgeschlagen und der Randbereich 22 um den Randbereich 23 nach oben herumgeschlagen. Entsprechend wurde der Randbereich 21 nach unten umgeschlagen und der Randbereich 20 um den Randbereich 21 nach oben herumgeschlagen. Das Knüllen erfolgte im mittleren Bereich 18.In the Figures 9 and 10 two further upholstery products 128, 130 are shown. In the case of the upholstery product 128 according to Figure 9 the edge region 23 was folded down and the edge region 22 turned around the edge region 23 upwards. Correspondingly, the edge area 21 was folded down and the edge area 20 turned up around the edge area 21. The crumpling occurred in the middle area 18.

Bei dem Polsterungserzeugnis 130 gemäß Figur 10 wurden die Randbereiche 21 und 22 zunächst umgeschlagen und dann die Randbereiche 20 und 23 um die Randbereiche 21,22 herumgeschlagen, bevor das Knüllen im mittleren Bereich 18 erfolgte.In the case of the upholstery product 130 according to Figure 10 the edge areas 21 and 22 were first folded over and then the edge areas 20 and 23 were folded around the edge areas 21, 22 before the crumpling in the middle area 18 took place.

Bei dem Polsterungserzeugnis 130 gemäß Figur 10 wurden die Randbereiche 21 und 22 zunächst umgeschlagen und dann die Randbereiche 20 und 23 um die Randbereiche 21,22 herumgeschlagen, bevor das Knüllen im mittleren Bereich 18 erfolgte.In the case of the upholstery product 130 according to Figure 10 the edge areas 21 and 22 were first folded over and then the edge areas 20 and 23 were folded around the edge areas 21, 22 before the crumpling in the middle area 18 took place.

Claims (9)

  1. Method for manufacturing a stuffing product (126, 128, 130), comprising the following steps:
    - providing an elongate paper strip (10) comprising two or more layers (12, 14) and comprising a middle region (18) extending in a longitudinal direction, the layers (12, 14) of the strip comprising edge regions (20, 21, 22, 23), wherein adjacent edge regions (20, 22; 21, 23) are not connected to each other radially outside,
    - folding up adjacent edge regions (20, 21, 22, 23) and
    - crumpling the paper strip (10') along the middle region (18),
    - characterized in that before crumpling along the middle region (18), the edge regions (20, 21, 22, 23) are turned up towards the middle region (18).
  2. Method as claimed in claim 1, characterized in that the paper strip (10'') is crumpled along the middle region (18) in such a way that the turned-up edge regions (20, 21, 22, 23) are crumpled as well.
  3. Method as claimed in claim 1 or 2, characterized in that the folded-up paper strip (10') is guided through a turning-up module (116) for turning up and/or that the turned-up paper strip (10'') is guided through a crumpling module (120) for crumpling.
  4. Method as claimed in one of claims 1 to 3, characterized in that the crumpling is performed by means of a first set of drive rollers (74, 76) and a second set of drive rollers (82, 84) in such a way that the second set of drive rollers (84, 84) rotates at an angular velocity which is lower than the angular velocity of the first set of drive rollers (74, 76), wherein the angular velocity of at least one of the sets of drive rollers (74, 76, 82, 84) is adjustable for controlling the crumpling density.
  5. Device (110) for manufacturing a stuffing product (126, 128, 130) having an entry area (52) for a flat, elongate paper strip (10) comprising two or more layers (12, 14), wherein the paper strip comprises a middle region (18) extending in a longitudinal direction and its layers (12, 14) comprise edge regions (20, 21, 22, 23), wherein adjacent edge regions (20, 22; 21, 23) are not connected to each other radially outside,
    with at least one fold-up mechanism (58) for folding up the flat paper strip (10) comprising two or more layers along its adjacent edge regions (20, 21, 22, 23), and with a crumpling mechanism for crumpling the paper strip (10'') along its middle region (18), characterized in that a turn-up mechanism is provided for turning up the folded-up edge regions (20, 21, 22, 23) towards the middle region and that the crumpling mechanism is preferably arranged in such a way that the turned-up edge regions (20, 21, 22, 23) are crumpled as well.
  6. Device (110) as claimed in claim 5, characterized in that a turning-up module (116) is provided where the turning-up mechanism is arranged, and that a crumpling module (120) is provided where the crumpling mechanism is arranged, wherein the turning-up module (116) can be replaced by another turning-up module when paper strips (10) of different width are used.
  7. Device (110) as claimed in claim 5 or 6, characterized in that the crumpling mechanism is formed in such a way by a second set of drive rollers (82, 84) cooperating with a first set of drive rollers (74, 76) that the second set of drive rollers (82, 84) can be rotated at an angular velocity which is lower than the angular velocity at which the first set of drive rollers (74, 76) can be rotated, wherein a control unit (122) for adjusting the angular velocity of at least one of the sets of drive rollers (74, 76, 82, 84) is provided so that the crumpling density can be controlled by means of the control unit (122).
  8. Stuffing product (126, 128, 130), particularly manufactured according to a method of claims 1 to 4 and/or in a device as claimed in one of claims 5 to 7, comprising an elongate paper strip (10) comprising two or more layers (12, 14), with a middle region (18) extending in a longitudinal direction, the layers (12, 14) of the strip comprising edge regions (20, 21, 22, 23), wherein adjacent edge regions (20, 22; 21, 23) which are not connected to each other radially outside are folded up and turned up towards the middle region (18) and wherein the paper strip (10) is crumpled along the middle region (18).
  9. Stuffing product (126, 128, 130) as claimed in claim 8, characterized in that the paper strip (10) is crumpled also along the turned-up edge regions (20, 21, 22, 23).
EP17732411.8A 2016-08-03 2017-06-21 Method and apparatus for producing a padding product, and padding product Active EP3493979B1 (en)

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DE102016114342.1A DE102016114342A1 (en) 2016-08-03 2016-08-03 Method and device for producing a padding product and padding product
PCT/EP2017/065316 WO2018024400A1 (en) 2016-08-03 2017-06-21 Method and apparatus for producing a padding product, and padding product

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